Metallic container and method for making the same

Abstract

The cover for a metal container has a first quantity of sealing material applied to an extent of its flange and the flange is pre-curled. The cover is assembled with a drum with the first quantity sealing material juxtaposed with a flange of the drum. The drum and cover flanges are wound jointly with a second quantity of sealing material continuous with the first quantity sealing material.

We claim: 
     
       1. The method of joining a cover to a drum to form a sealed container comprising the steps of: (a) applying a first quantity of sealing material in first flowability state to a flange of said cover;   (b) after said first quantity of sealing material exhibits a preselected second flowability state decreased from said first flowability state thereof, placing a flange of said drum in facing relation with said first quantity of sealing material; and then   (c) introducing a second quantity of said sealing material in said first flowability state contiguous with such first quantity sealing material between said cover flange and said drum flange while jointly winding said drum and cover flanges.   
     
     
       2. The method claimed in claim 1 wherein said step (a) is practiced while said cover flange is preliminarily wound. 
     
     
       3. The method claimed in claim 2 wherein said cover flange is wound through an angle exceeding 180° in such preliminary winding. 
     
     
       4. The method claimed in claim 1 wherein said drum is rotated whereby said second quantity sealing material is dispersed between said flanges by centrifugal force. 
     
     
       5. The container made by the practice of the method of claim 1.